Attachment fob fiee-alarm boxes



P. EIFRIED.

ATTACHMENT FOR FIRE ALARM BOXES.

APPLICATION FILED NOV-16. l9lfl.

Patented Aug. 5, 1919.

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P. EIFRIED.

ATTACHMENT FOR FIRE ALARM BOXES.

APPLICATHJN FILED NOV- l6, 19H]- 1,31 1 ,881 Patented Aug. 5,1919.

2 SHEETS$HEET 2 INVENTOR Pefar Ezfrz'c' a m fl L ATTORNEY c0.WASHINGTON, D. c.

UNITED STATES PATENT ()FFICE.

PETAR EIFRIED, OF PASSAIC, NEW JERSEY.

ATTACHMENT FOR FIRE-ALARM BOXES.

To all whom it may concern:

Be it known that I, PETAR EIFRIED, a subject of the King of Hungary,residing at Passaic, county of Passalc, and State of New Jersey, haveinvented certain new and useful Improvements in Attachments forFire-Alarm Boxes, of which the following is a specification.

This invention relates to improvements in fire alarm boxes and has asits special object the provision of means whereby a person attempting togive an alarm is restrained from leaving the box, thereby deterringunwarof parts hereinafter described and shown in the accompanyingdrawings, forming a material part of this disclosure, and in which-Figure 1 is a partial side elevational and sectional view, showing anapparatus made in accordance with the invention, the section being takensubstantially on line 1-1 of Fig. 4.

Fig. 2 is a fragmentary perspective view indicating the application ofthe invention.

Fig. 3 is a fragmentary transverse sectional view taken on line 33 ofFig. 1.

Fig. 4 is a transverse sectional view taken on line 4- 4 of Fig. 1, theparts being shown in a closed position, and,

Fig. 5 is an end view of the apparatus with the cover removed, the partsbeing shown in an open position.

In Fig. 2 of the drawings a conventional type of post is indicated bythe numerallO, the same having a base, the post being hollow toaccommodate the wires usually, employed connecting' with the alarm box12, rigidly engaged with the post by bands 14, and having the door 15secured in the usual manner.

Attached to this door or cover 15, and at a slightly downward tilt/111gangle as l dl- Specification of Letters Patent.

Patented Aug. 5, 1919.

Application filed November 16, 1918. Serial No. 262,808.

cated by the two center lines in Fig. 1, of which the upper oneindicates a horizontal dlrection and the lower the downward tilt ofcaslng 18, is a hollow cylinder 18 by means of a flanged base 19, itsopposite outer end 20 being enlarged and provided with an annular cap orcover 21, secured by a hinge 22 upon one side, while upon the oppositeside,

attached by the hinge 23 is a clip 24 on gageable over the edge 25 of arecess formed in the enlarged portion 20 of the cylinder.

The cover constitutes in effect a frame having a circular opening 26 andsecured adacent to the flanged portion 21, by a hinge 27, is a flat ring28, having an opening 29, in register with the opening 26, the ringbeing clamped closely against the inner side of the cover plate by anextending flat button 30, pivoted by its stem 31, to the cover plate 21,the ring 28, containing a slot 32 through which the button 30 may passwhen clamping the ring and cover element '21 firmly together.

In order to easily operate the ring a finger pull 33, is secured to theinside of the ring so that when the button is turned to register withthe slot 32, the ring may be swung upon its hinge permitting theinsertionof a diaphragm 60 of paper or other preferred material, whichcloses the opening entrance to the outer end of the cylinder, thediaphragm however, being so made that it may be readily broken upon theinsertion of a persons hand.

' A cutaway portion or recess 35 is formed in the cylindrical walls ofthe enlargement 20, and fitted to be received, therein, is a curvedfiller plate 36, while secured over the filler plate 36, is a coverplate 38 having extending marginal edges adapted to make in timatecontact and overlay the marginal edges of the cut out portion 35preventing entrance of snow or water to the interior of the casing, thecover plate being engaged at one end by the hinge 37 to the exterior ofthe wall 20. I

Pivoted to the end of the cover plate, opposite the hinge 37, is anotherhinge element 39, carrying a pin 40 by which is engaged a hasp 41,having an opening receptive of the staple 42 secured in the wall 20, andin order to secure the cover plate to the wall a padlock '43 may beengaged in the staple 42 maintaining the covers in a close relation,

Fixed rigidly within the walls, of the casing 2-0, at spaced intervals,are two pairs of-lugs 415- and 45, and secured by pins 47, are bracketelements 18 and 48, formed with segments 50 and 51, having beveled innerfaces, the segment 51 having attached to it one end, of a coiled tensionspring. 52, the other end beingengaged in an eye extending inward fromthe cylinder Wall 20.

Similarly pairs oflugs 16 and 16 extend inwardly from the filler plate36, and secured by pins 47 e are bracket elements 53 and 53 extendingfrom other segments 54 and 55 cotiperating to form a circle when thefiller and cover plate are clamped to the body of the cylinder, theeffect of the spring 52 being to hold the segments substantially radialwith respect to the structure.

Secured upon the outer side of each of the segments at one end thereof,are clips 56, having extending portions adapted to engage with theadjacent ends of the next succeeding segments, forming an interlockingarrangement whereby all of the several segments are held insubstantially circular formation, which is materially assisted due tothe operation of a single clip 58 secured to the back of the segment 51.

' In operation, the casing'having been secured in the front of an alarmbox in such manner as to inclose the handle or key by which it isoperated, the diaphragm 60,

which prevents entrance of water, rain or the like from the end, andwhich must be punctured or broken to obtain access to the interior, isthen clamped betweenthe cover 21 and plate 28.

Upon insertingthe hand it will come in contact with the beveledsegments, opposing the spring 52, the segments yielding so as to permitthe insertion of the hand through the central opening formedtherebetween, and permitting manipulation of the key or operatinghandle, designated generally by the numeral 61, which extends inwardlyfromthe base end of the'cylinder 18. When, however, an attempt is madeto withdraw the hand, the segments close upon the wrist,

preventing its retraction and holding the person engaged with the deviceuntil a proper officer arrives, opening the lock 13, turning outward thecover plates 36 and 38 and thereby releasing the hand of the persongiving'the alarm.

.From the foregoing it will be seen that an effective device forpreventingthe escape of a. person giving the alarm has been disclosed,thereby avoiding the frequent occurrence of false alarms by evilintentioned or unauthorized persons.

Having thus described my invention what signature.

means for connecting said casing with an.

alarm box, said. casing having an opening formed transversely 1n 1tswall, covers for the mentioned opening, means for securing said coversin position, a plurality of yield- 'ingly mounted segmental elementssecured within said casing, other similar segments pivoted to the innerside; of said covers, means for holding sa1d segmental elements 1n anoperative posltlon, and means for releasing the said segments mountedupon said cover plate. Y

2. Inan attachment for alarm boxes, the combination with a cylindricalcasing and means for attaching said casing to the operative face of abox, of a cover hingedly engaged at the open outer end of said casing, adiaphragm rem'ovably engaged with said cover through which anentrymaybe'.

made, a lateral recess formed in said casing adjacent to said cover, aplate adapted to cover said recess, means for securing said plate inposition, lugs secured interiorly of said casing, other lugs engagedwith the inner surfaceof said cover, a plurality "of yieldinglymountedsegmental elements attached to'each of said lugs, said elements when inoperative position comprising substantially a circle having centralopening, and means for holding said segmental elements in asubstantially radial operative position, said. segments being adapted toretain a band entered therebetween.

3. In an attachment for alarm boxes, the

' combination with a cylindrical casing hav ing an enlarged head, andmeans for attach- 'ing the base of sa1d casing to an alarm box,

of a lateral recess formed in said enlarged head, a filler platehingedly to enter within said recess, a cover plate disposed over'saidfiller plate, lugs extending inward from said filler plate, othersimilar lugs extendsaid lugs, said elements forming substantially acomplete circle and having an annular opening at their innerextremities, means for locking sa1d cover plate in an ad usted posltion,means for holding-sa1d segmental elements in a radial extended operativeP08111011, and means for securing a dra- 1phragm upon said cover, saiddiaphragm eing disruptable in nature.

In testimony whereof I h ave affixed YPETABEIFIRIED.

"Copies otthis patent may be obtained for five cents each, byaddressingthe commissioner 1615 Patents;

. v. -f g n G"!

